[GRASS-user] starting nviz causes blackscreen and logout

GRASS GRASS user
1

Hi
since today I have a problem with nviz. last week it has been working very well but today surprise data loss :o(

First time I met the problem I started nviz with a rasterfile and
GRASS:~/gw$ g.r -p
projection: 99 (Transverse Mercator)
zone: 0
datum: potsdam
ellipsoid: bessel
north: 5348531.5719558
south: 5317450.80738016
west: 4397442.97214944
east: 4422732.52916468
nsres: 30.00073801
ewres: 29.99947451
rows: 1036
cols: 843
cells: 873348

nviz map vect=map1,map2,map3

I got the two little windows for some seconds and than the screen went black and I had to login again. Fortunately I didn’t lost that much data. Just some lines in kate.

I can reproduce this problem
It also happens with a resolution of 100m and without vector files or just if I start nviz quickly without any map.
(last week I used nviz with a bigger map in a very high resolution without problems =-O )

I made a reboot and tried it without any other program running.

I use GRASS 6.3.cvs (2007)
on
System Information

2

Hi,

did you update Xorg but forgot to re-install the OpenGL
driver for your video card? Since nviz uses OpenGL, this could
be a problem.

Markus

On Jan 21, 2008 6:07 PM, Philipp Steigenberger <userlist@online.de> wrote:

Hi
since today I have a problem with nviz. last week it has been working very
well but today *surprise* data loss :o(

First time I met the problem I started nviz with a rasterfile and
GRASS:~/gw$ g.r -p
projection: 99 (Transverse Mercator)
zone: 0
datum: potsdam
ellipsoid: bessel
north: 5348531.5719558
south: 5317450.80738016
west: 4397442.97214944
east: 4422732.52916468
nsres: 30.00073801
ewres: 29.99947451
rows: 1036
cols: 843
cells: 873348

nviz map vect=map1,m ap2,map3

I got the two little windows for some seconds and than the screen went
black and I had to login again. Fortunately I didn't lost that much data.
Just some lines in kate.

I can reproduce this problem
It also happens with a resolution of 100m and without vector files or just
if I start nviz quickly without any map.
(last week I used nviz with a bigger map in a very high resolution without
problems =-O )

I made a reboot and tried it without any other program running.

I use GRASS 6.3.cvs (2007)
on
System Information

============================================================================
Platform Unix

----------------------------------------------------------------------------
Operating System &nbsp ; Linux

----------------------------------------------------------------------------
OS Version 2.6.22.13-workstation-4gb-smp

----------------------------------------------------------------------------
Processor Type (arch) i686

----------------------------------------------------------------------------
Full OS ID Linux-2.6.22.13-workstation-4gb-smp-i686

----------------------------------------------------------------------------
Tcl Version/Patchlevel 8.4.12

----------------------------------------------------------------------------

any suggestion?
Thank you

om shantih
Philipp

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